Instruction - operation code (opcode)
Table of Contents
About
An opcode (operation code) is the first part of an instruction that is read by the decoder to select the device (circuit) that implements the operations.
It's a unique number that identifies an operation.
Each opcode is a member of the instruction set.
Articles Related
Name
A opcode is a digit. Assembly language gives name to opcode that are called mnemonic.
Example
In a assembly format, simple opcode example
opcode 1100, 1100
# if opcode corresponds to the binary 00, it's the same as
0011001100
Documentation / Reference
Recommended Pages
